The brittle mica-like KNiAsO4 and its organic derivatives
- 1 June 1982
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 17 (2) , 175-183
- https://doi.org/10.1180/claymin.1982.017.2.02
Abstract
The nickel arsenate KNiAsO4 has a mica-like layer structure with surface charge densities similar to brittle micas. In contrast to micas it easily exchanges alkylammonium ions. The interlayers have paraffin-type chain arrangements, as in alkylammonium vermiculites and alkylamine smectites and vermiculites, but the very regular chain packing causes a marked odd/even alternation of the basal spacings. The reactions of KNiAsO4 throw light on the exchange behaviour of micas.Keywords
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